Window closure



Nov. 27, 1956 v. l. zELov 2,771,643

WINDOW cLosuRE Filed sept. 22, 1952 l INVENTOR vlc'roR 1.2' ELov m223- EN ATTORNEY United States Patent WINDOW CLOSURE Victor I. Zelov, Rosemont, Pa. Application September 22, 1952, Serial No. 310,760 1 Claim. (Cl. 20-40) This invention relates to closure members, more particularly to window panes and windows, and has for an object to provide a window pane and windows of novel construction.

Another object of the invention is to provide a plas-tic window pane so constructed as to expand to more closely grip or engage the window frame upon )application of wind or other external pressure thereto.

Yet another object of the invention is to provide a window closure of high structural strength capable of withstanding extremely high wind loads.

The design and construction provides a very high structural strength which permits making larger panes and reducing the cost of the window frames. The design also provides for economical production and Ithe use of plastic materials which will permit of controlled light transmission.

These and other objects are eiected by the invention as will be apparent from the following description and claim, taken in accordance with the accompanying drawings, in which:

Fig. l is a perspective view of la window pane or closure constructed in accordance with the present invention; and,

Fig. 2 is an enlarged sectional view, taken along the line II-II of Fig. 1, looking in -the direction indicated by the arrows.

Referring now to the drawings in greater detail, the reference character indicates a wall having an opening 11 in which is mounted a window frame 12. The top of the wall opening 11 is defined by the lintel 13 and the bottom of the 'opening by the sill 14.

The present linvention is concerned with the window closure or pane, indicated in its entirety by the reference character 15. In the construction illustrated the pane 15 includes a rectangular peripherial portion 16 lying in the plane of the opening 11, and provided with a ilange 17 disposed at right angles lto the plane of said peripherial plortion 16 and serving to strengthen the latter and to provide secure anchorage of the peripherial portion in the mastic or putty 18.

The peripherial portion 16 surrounds a main body portion comprising a central pyramldal portlon 20 and 2,771,643 Patented Nov. 27, 1956 ICC van intermediate frusto-pyramidal portion 21, with the base of the central pyramidal portion 20 coinciding with the top of the intermediate frusto-pyramidal portion 21. The tops of the two pyramidal portions 20 and 21 extend in opposite directions, so that the slope of the four tlat sections comprising the central portion is the opposite of the slope of the four at sections comprising the intermediate portion, when considered with respect to the plane of the opening 11.

As best shown in Fig. 2, this construction provides a window pane that is dished :outwardly in overall section, yet has a central portion dished inwardly. This not only produces a novel and pleasing appearance, but effects a high degree of resiliency, permitting the pane to give when subjected lto high wind pressure. The rectangular peripherial portion 16 actually bows outwardly intermediate its corners under application of pressure to ythe :outer surface of the pane.

By having the central portion 20 of the pane disposed reentrantily with respect -to the intermediate portion 21, the desired dished effec-t is obtained without having any portion of the pane project outwardly from the plane of the opening 11 a distance sufficient to render the window unsightly.

In order lto obtain a suitable degree of strength it is recommended that a reinforced plastic be utilized, and the desired reinforcing may be Aobtained by `the use of glass fibers, burlap, jute, etc. in a binding medium of any casting type of thermoset-ting or thermoplastic resin, such as polyester styrene, diallylpthalete, epoxy resin, etc. By proper selection fof reinforcing medium and binding medium, various degrees of light transmission, strength, insulation, resiliency, etc. may be upbtained.

While this invention has been illustratd in but one form, it will be apparent to those skilled in the art that `'other shapes and cross sections can be utilized to obtain the desired results without departing from the spirit thereof.

What is claimed is:

A window closure consisting of a unitary molded sheet of reinforced plastic comprising a rectangular peripherial portion, a truste-pyramidal intermediate portion, and a reversed pyramidal central portion whose base coincides with the top of the frusto-pyramidal intermediate portion.

References Cited in the le of this patent UNITED STATES PATENTS 706,596 Poyner Aug. 12, 1902 2,098,174 Giberson Nov, 2, 1937 2,442,236 Fagan May 25, 1948 2,534,355 Kirschstein Dec. 19, 1950 FOREIGN PATENTS 60,694 Denmark Mar. 15, 1943 

